code: def test_iob1_to_bioul(self):
      tag_sequence = ["I-ORG", "O", "I-MISC", "O"]
      bioul_sequence = span_utils.to_bioul(
          tag_sequence, encoding="IOB1"
      )
      assert bioul_sequence == ["U-ORG", "O", "U-MISC", "O"]
  
      tag_sequence = ["O", "I-PER", "B-PER", "I-PER", "I-PER", "B-PER"]
      bioul_sequence = span_utils.to_bioul(
          tag_sequence, encoding="IOB1"
      )
      assert bioul_sequence == [
          "O",
          "U-PER",
          "B-PER",
          "I-PER",
          "L-PER",
          "U-PER",
      ]
  
file_path: magnitude/pymagnitude/third_party/allennlp/tests/data/dataset_readers/dataset_utils/span_utils_test.py
imports: from __future__ import with_statement
  from __future__ import absolute_import
  from allennlp.common.testing import AllenNlpTestCase
  from allennlp.data.dataset_readers.dataset_utils import span_utils
  from allennlp.data.tokenizers.word_tokenizer import SpacyWordSplitter
  from allennlp.data.tokenizers.token import Token
label_desc: Use image node_id 9 for calling the SpanUtilsTest obj's underlying member method code with example usage: obj.test_iob1_to_bioul() without return types